This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 49632504515 |
| 2 | 1530323 |
| 3 | 277884 |
| 4 | 2661 |
| 5 | 7380 |
| 6 | 403 |
| 7 | 172 |
| 8 | 61 |
| 9 | 88 |
| 10 | 63 |
| 11 | 50 |
| 12 | 56 |
| 13 | 29 |
| 14 | 17 |
| 15 | 16 |
| 16 | 11 |
| 17 | 7 |
| 18 | 5 |
| 19 | 6 |
| 20 | 9 |
| 21 | 10 |
| 22 | 25 |
| 23 | 20 |
| 24 | 15 |
| 25 | 49 |
| 26 | 66 |
| 27 | 841 |
| 28 | 328509 |
| 29 | 528490692608 |